lit. deal sincerely and fairly (idiom) / frank and open-minded / plain speaking / Let's talk frankly and openly between ourselves. / to put one's cards on the table
(coll.) piece of light artillery such as a mortar / (fig.) person who speaks boldly and frankly / hot hatch (car) / (also used figuratively with various meanings in other contexts)
一家人不说两家话
yī jiā rén bù shuō liǎng jiā huà
lit. family members speak frankly with one another, not courteously, as if they were from two different families (idiom) / fig. people don't need to be deferential when they ask a family member for help / people from the same family should stick together (and good friends likewise)
zhèng